Ladle & Tundish Covering Flux Types
According to the different content of carbon, the Ladle & Tunish Covering Flux could be divided into ordinary series, low carbon series, super low carbon series, and no carbon series; and according to the grain shape, it could be grouped into hollow granular ones, solid residue shape ones, and powdery ones. Among them, the super low carbon series avoid carbureting harm in the carbonization process of rice hull. Meanwhile the no carbon and low silicon alkaline particles Tundish & Ladle Covering Flux completely adopts the no carbon raw materials, and has the characteristics of thermo stability, doesn’t crusting, good spread ability, strong insulating ability, doesn’t stick to the wall, low decrease of the liquid steel, doesn’t erosion ladle and long nozzle, etc and it could be adapted to the liquid surface protection of the ladle and tundish matched with the low carbon and super low carbon steel.

Characteristics for Ladle & Tundish Covering Flux
1.Good insulating performance, and the temperature decrease of the liquid is less than 0.5℃／min.
2. This product is pre-melting materials, and has the characteristics of stable elements, melt evenly, low harmful ingredients of P and S.
3. The product is hollow particle products, density and specific gravity, no melt steel splash when added, good working environment no pollution, safe, without adverse effects to the melt steel.
4. Circular particle, have good fluidity, in a loose state after added, good spread ability, could quickly and completely cover the melt steel, no dust float in the sky when added, no pollution.

Ladle & Tundish Covering Flux Types specifications

Classification

CaO／SiO2

SiO2 %

CaO
%

Ai2O3
%

Fe2O3
%

MgO
%

C
%

H2O %

Volume
weight
g／cm3

Melting point
℃

Size
mm

Low carbon

≥1.0

25-32

32-40

8.0-16

≤6.0

≤10

≤6.0

≤1.5

0.5-1.0

1150-1350

To customer’s needs

Super low carbon

—

32-40

37-45

3.0-10

≤4.0

5.0-10

TC≤2.0

≤1.2

0.5-1.0

1150-1350

0.15-1≥80％

For ordinary ladle

—

30-40

2.0-10

16-29

≤6.0

≤6.0

15-35

≤2.0

0.5-0.8

≥1250

≤3.0

For no carbon ladle

—

10-21

18-25

≤11.0

—

20-43

—

≤1.5

0.6-1.0

≥1350

≤10

Using Method Of Tundish Covering Flux
This kind of Tundish Covering Flux can be used for protecting molten steel of basicity or magnesia ladle lining. The reference dosage is 1kg per ton of steel.